缩短 发表于 2025-3-26 21:15:12
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Polarization Effects in Birefringent, Nonlinear, Periodic Media of the experimental work in this field has concentrated on fiber Bragg gratings, which typically have refractive index variations on the order of 10. . With such small index variations, it is reasonable to apply the heuristic nonlinear coupled mode equations, or the appropriate nonlinear Schrö是贪求 发表于 2025-3-27 08:12:57
Self-transparency and Localization in Gratings with Quadratic Nonlinearityt the possibility to observe nonlinear behavior in periodic media made out of this class of materials, and in particular effects of self-transparency and switching mediated by localized envelopes such as those observed in cubic media (e.g., fibers and A1GaAs ) and discussed elsewhere in this解冻 发表于 2025-3-27 11:54:47
Photonic Band Edge Effects in Finite Structures and Applications to χ(2) Interactionscades. Usually referred to as photonic band gap (PBG) crystals , the essential property of these structures is the existence of allowed and forbidden frequency bands and gaps, in analogy to energy bands and gaps of semiconductors. An early paper by Armstrong and co-workers and a second by Blo薄膜 发表于 2025-3-27 14:35:27
Theory of Parametric Photonic Crystalsere one has twice the frequency of the other. This allows coupling to occur between the bandgaps, provided the dielectric itself has a quadratic or parametric nonlinearity. Since Bloembergen’s time, it has been known that a modulated quadratic nonlinearity can enhance the prospects for phase-matchin进取心 发表于 2025-3-27 20:27:49
Nonlinear Propagation in Fiber Gratingsings in silica fibers have been developed for many linear applications, for example for optical filters in wavelength division multiplexed optical communication systems. These high quality fiber Bragg gratings have been used to observe nonlinear propagation phenomena for the first time in photonic cMorose 发表于 2025-3-28 01:26:15
Gap Solitons Experiments within the Bandgap of a Nonlinear Bragg Gratinghen the frequency of the incident light lay within the grating’s band gap. Since then much work both experimental and theoretical has been done on the nonlinear properties of Bragg gratings and in this chapter we present a brief review of our work concentrating on nonlinear light propagation in Brag无礼回复 发表于 2025-3-28 02:39:04
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Optical Properties of Microstructure Optical Fibersign of an optical fiber consists of silica cladding that surrounds a silica core doped with germanium (GeO.), which increases the index of refraction by up to 2% above that of pure silica, allowing light to be guided by total internal reflection at the core-cladding interface. Over the years, howeve